Scraper and loader



y 11950 E. WOMMER 2,506,759

SCRAPER AND LOADER Filed Oct. 13, 1947 3 Sheets-Sheet l z'zz Wmrzzefi INVENTOR ATTORNEYS May 9 1950 E. WOMMER SCRAPER AND LOADER 3 Sheets-Sheet 2 Filed Oct. 15. 1947 i2 INYENTOR mm mm mm m m WW ATTORNEYSQ W 1950 E. WOMMER 2,506,759

SCRAPER AND LOADER Filed Oct. 13, 1947 3 Sheets-Sheet 5 .Zifii'wz'm -Wamme7 INVENTOR Patented May 9, 1950 UNITED STATES PATENT OFFICE.

SCRAPER AND LOADER Edwin Wommer, Bayfleld, Colo., assignor of onehalf to Emil Arndt, La, Plata County, 0010.

Application October 13, 1947, Serial No. 779,624 Claims. (01. 37-124) This invention relates to a combined scraper and loader attachment designed for use in connection with tractors, and aims to improve generally the construction as set forth in my Patent Number 2,341,007 dated February 8, 1944.

An important object of the invention is to provide operating means including a push bar whereby the side swing of the scoop is controlled.

Another important object of the invention is to provide an operating means including a scoop stop which is so designed as to let the scoop dump completely by movement of the scoop to a vertical position.

Still another important object of the invention is to provide yieldable means for returning the scoop to its normal position after operation, thereby eliminating the necessity of manually controlled means for returning the scoop.

A further object of the invention is the provision of means in the form of a disk which constitutes a part of the scoop support, which disk operates to maintain the scoop level, preventing it from tipping sideways while in operation.

With the foregoing and other objects in View which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts, hereinafter more fully described and pointed out in the claims, it being understood that changes maybe made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

Referring to the drawings Figure l is a side elevational view of a scraper and loader, constructed in accordance with the invention.

Figure 2 is a plan view thereof.

Figure 3 is a plan view of the scraper and loader, and illustrating the scoop and supporting arm as swung laterally of the line of advance of the machine.

Figure 4 is a sectional view taken on line 44 of Figure 2.

Figure 5 is a sectional view taken on line 5-5 of Figure 3.

Referring to the drawings in detail, the attachment comprises a platform indicated generally by reference character 5, which platform includes a, forward transverse bar 6 which is secured to the pivoted side rails 8 of the conventional hydraulic implement lift frame of a tractor.

Mounted on the platform 5, is the turntable 9 which is provided with stops l0 extending from the edge thereof, the stops Ill being arranged to engage the pins l I that extend upwardly from the 2 platform 5 when the turntable is rotated in one direction, thereby restricting movement of the turntable and beam which is connected therewith; and which supports the scoop, to be hereinafter more fully described. v

The scoop beam includes an inner section.l2- and a telescopic outer section I3, the outer section l3 providing that section of the beamto which the scoop is connected.

The reference character l4 indicates a support-- ing disk which has pivotal connection with. the section l3 of the beam at l5, to which diskthe swivel bar it is connected, the bar I6 having pins H at its ends that are fitted in openings formed in the scoop arms I? that rise from the scoop, and are secured to the sides of the scoop.

The scoop, which is indicated by the reference character [8, is rotated with respect to its sup-; porting beam by means of the control rod l8 which embodies telescoping sections, one section of the rod being connected to the swivel bar It at I9, the opposite end of the control rod receiving the telescoping section 29, which has pivotal connection with the pivoted cross arm 2|, at 22.

The cross arm has a pivotal connection with the section [2 of the main supporting beam at 23. A link 24 has a pivotal connection with one end of the cross arm 2| at 2 l and has its opposite end pivotally connected with the plate 25, at 26.

This plate 25 has downwardly disposed extensions i that have right-angled ends 1, secured to the side rails 8 by the U-bolts 9.

Carried by the inner end of the section l2 of the supporting beam is a roller 25' that bears against the under surface of the plate 25 provid-.- ing a bearing for the beam. I

Extending laterally from the supporting beam and secured thereto is an arm 21 to which the end 28 of the connecting rod 29 is connected,

the connecting rod being telescopingly arranged within the end 28.

A coiled spring 30 has one of its ends connected to the end 28, while the opposite end of the coil spring is connected to the inner section of the connecting rod 29, at 3!. Thus it will be seen that when the main beam has been moved to the position as shown by Figure 3 of the drawings, and the operating mechanism released, the coiled spring will act to return the main beam and scoop supported thereby, to the position as shown by Figure 2 of the drawings.

It might be further stated that at one end of the rod 29 is an eye 32 connected to one of the fenders of the tractor, by means of the U-bolt 33- Adjustably supported within the scoop I8 is a guard 34 which guard is formed with an elongated opening in which the bolts 35 extend, the bolts also passing through openings in the rear wall of the scoop. This guard is designed to be engaged by the scoop beam l3 when the scoop tilts to a digging position, and the rear end of the scoop is tilted upwardly thereby restricting pivotal movement of the scoop to insure the scoop assuming the proper digging or scoopingposition.

Connected with the arm 36 that is secured to the rear end of the scoop by means of thebolt 35, is the dump cable 31 which egrtenl s,. to

a point adjacent to the operator's seat, so that the operator may have easy control 'over the dumping of the scoop, which is accomplished by pulling the dump cable when the, scoop..;has been moved to the proper dumping position.

Connected with the usual power lifting arms 38 of the hydraulic implement lift of the tractor, are the :links 39? that connect withxthezside rails- 8, with the result that when theuarmsfifls' are pulled .upwardly by the power arms 68, the turn-.

table iiscaused to rotate, swinging the main beam: laterally so that the loaded scoop; .18" .can-

dumped at one side of theexcavation.

The'swinging of the main beam laterally; is

caused-by the'ishortening of the horizontal dis-.1

tance between the pivot- 25 and the pivot. 21L,

as the-main :beam is elevated.

f Since-the-arms -38 and links 39 remain :in the positionas shown by Fig. 2, until they are -ac-.

tuated by the power of the tractor, the scoop will'naturally be held: in a cutting path parallel to-the path of travel of the tractor.

In view of the foregoing detailed description, lt'is believed that a iurther description as to the-construction and operation of the attachment is unnecessary for a clear understanding of-the invention.

" Having thus described the invention, what is claimed is:

' ;l'. A- scraper and loader attachment for-tractors, comprising a platformadapted forpositioning' on theside rails of a tractor, a turntable BIA scraper and loader attachment ior tractors. comprising a platform, means for securing the platform to the chassis of a tractor, a turntable mounted on the platform, a scoop supporting meam secured to the turntable, a swivel 1:5 :barpivotally mounted at the outer end of the mounted on the platform, stops mounted on the turntable and extending from --the periphery thereof, pins rising irorrr the platform and being disposed in-the paths of: -travei of the stops re strictingmovement ofthe table on theplatform, a telescoping-scoop supporting :beam secured to the turntable, and means for :pivotallymount: ing a scoop at the free end of the scoop-supporting beam, and. means. for rotating theiturntable .operating the supportingwbeam .andiscoop.

2. A scraper and loaderattachment for trap.- tors, .comprisinga platform, means for securing the platform to the side rails .of. a ;tractor,..a turntable mounted for rotary movement inv a horizontal plane mounted on the platform, stops supporting-beam, a scoop swivelled to the bar, a

cro's s arqn pivotallyponnected to the beam, a link connected with one end of the cross arm, the opposite 'end of the link being pivotally connected to the platform, ,a control rod connected with. theopnosite .end of, the .Qmss: arm isaid controirod being, aha-pivotally connectednto bar-{whereby swin ing movementtof thevbeam: rotates the barsand scoop mountedthereon', and;

1 means for-z-moying the scoopsupporting beam.

, 4. Ascraper and. loader attachment for. tractors, comprisingratplatform, means for. securingthe-platformtothe sidejrailsbf a tractor chassis; a. turntable mounted .on-.;the platform, a plate connected .with-.;the chassis and disposed above.- the;.tur ntable,..a.scoop supporting beam, secured: tosthe turntable, the scoop including a swivel] bar, pivotally connected to the outer endpofithe beam, means including a cross arm, a linlcand control rod, .connectingthe plate with the scoop whereby movement; of the beam results in a rotarymovnmentdof .thescoop, and means: for swinging, the turntable .and .scoopsupporting beam a. horizontal plane.

r5-.. Aiscraper and loader attachment for tractors, comprising aflzplatform, means. for: attachinglthe platform to aztractor chassis, aturntable mounted: onwthe platform, a telescoping supporting. beam: secured .to-the turntable, a scoop pivotally mounted on the outer end of the beam and adaptedL-to =pivot vertically and horizontally, means for 'swinging the scoop in a horizontal plane, means forpivoting the scoop vertically, and: means: for-automatically:returning the 1 scoop and? beamztoits normal position.

WGMMER.

REFEaEncEs CITED T z wms' ra e ee e ers o r o d in the,

file of this patent UNITED-@IATES ar Nrs 

